TINGKAT PENCEMARAN WADUK PENJALIN KECAMATAN PAGUYANGAN KABUPATEN BREBES DITINJAU DARI STRUKTUR KOMUNITAS PLANKTON
Abstrak: Penjalin Reservoir is
located in Brebes Regency, Indonesia. Human activity around Penjalin Reservoir,
such as irrigation, aquaculture, and sanitation can affect its water’s quality.
Plankton can be used as bioindicator since its existence is heavily affected by
water physical and chemical factors. Polluted waters can affect diversity and
abundance of plankton. The purpose of this research were to determine waters
quality of Penjalin Reservoir, to know plankton community structure (abundance,
diversity, and domination), and pollution level of each sampling station based
on plankton diversity. This research used survey method on 6 sampling stations
covering inlet, middle of reservoir, and outlet with 3 replicates and 4 weeks
interval. Water quality were analyzed descriptively based on criteria of PP No.
82 Tahun 2001. Abundance and diversity were estimated as Shanon-Wiener index.
Domination were estimated as Simpson index. Plankton abundance values varies
from 4,970.30 to 12,923.37 ind/l with the most abundant species was Tetraedon
minimum. Diversity index (H’) were high with value around 3.28–3.55 and
domination index were around 0.04–0.07. These diversity indexes showed that the
water quality of Penjalin Reservoir were not polluted.
Penulis: Octyviana Arum,
Agatha Sih Piranti, Christiani
Kode Jurnal: jpbiologidd170025
